1.25G SFP SX 850nm 550M LC Multi-Mode Transceiver
● Up to 1.25Gb/s data links
● 850nm VCSEL laser transmitter and PIN photo-detector
● Up to 550m on 50/125um MMF
● Hot-pluggable SFP footprint
● Duplex LC/UPC type pluggable optical interface
● Low power dissipation
● Metal enclosure, for lower EMI
● RoHS compliant and lead-free
● Support Digital Diagnostic Monitoring interface
● Single +3.3V power supply
● Compliant with SFF-8472
● Case operating temperature
   Commercial: 0 ~ +70℃
   Extended: -10 ~ +80℃
   Industrial: -40 ~ +85℃
HTF‘s SFP 1.25G 850nm 550m transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the VCSEL laser and the PIN photo-detector .The module data link up to 550m in 50/125um multi-mode fiber. 

Switch to Switch Interface
1xFiber channel Application
Gigabit Ethernet 
Switched  Backplane  Applications
Router/Server Interface
Other Optical Links

Compatible Brands 
HTF optional transceiver have been successfully tested with below brands:
HTF 1.25G SFP 850nm 550m DOM LC MMF transceiver Module Compatible with the following brand and more
Cisco GLC-SX-MM J4858A HPE ProCurve
Juniper Networks EX-SFP-1GE-SX J4858D HPE Aruba
Arista Networks SFP-1G-SX JD118A HPE H3C
Brocade E1MG-SX-OM H3C SFP-GE-SX-MM850-A
Dell PowerConnect 320-2881 Extreme Networks I-MGBIC-GSX
HW SFP-1.25G-SX Ciena OPT-SX
IBM 81Y1622 Avaya Nortel AA1419048-E6
D-Link DEM-311GT Aruba Networks SFP-SX
Avago HFBR-5710L Allied Telesis AT-SPSX
F5 Networks F5-UPG-SFP-R SMC Networks SMC1GSFP-SX
1000BASE-SX SFP 850nm 550m DOM LC MMF transceiver Module

Ordering Information
Part Number Package Data Rate Reach Wavelength(nm) TX output RX Sensitivity Power consumption Interface
HTSF-M1G85Mx SFP 1.25G 550m 850nm -9~-3dBm -17dBm 0.85W LC
HTSF-M1G31Mx SFP 1.25G 550m 1310nm -9~-3dBm -19dBm 0.85W LC
HTSF-M1G31Fx SFP 1.25G 2km 1310nm -9~-3dBm -19dBm 0.85W LC
HTSF-S1G31Lx SFP 1.25G 10km 1310nm -9~-3dBm -20dBm 0.85W LC
HTSF-S1G31Ex SFP 1.25G 40km 1310nm -5~0dBm -24dBm 0.95W LC
HTSF-S1G55Ex SFP 1.25G 40km 1550nm -5~0dBm -24dBm 0.95W LC
HTSF-S1G55Zx SFP 1.25G 80km 1550nm 0~5dBm -26dBm 0.95W LC
HTSF-S1G55Xx SFP 1.25G 100km 1550nm 0~5dBm -28dBm 0.95W LC
HTSF-S1G55Yx SFP 1.25G 160km 1550nm 1~6dBm -33dBm 0.95W LC
HTSF-C1GxxLx SFP 1.25G 20km CWDM -9~-3dBm -20dBm 1W LC
HTSF-C1GxxEx SFP 1.25G 40km CWDM -5~0dBm -24dBm 1W LC
HTSF-C1GxxZx SFP 1.25G 80km CWDM 0~5dBm -26dBm 1W LC
HTSF-C1GxxXx SFP 1.25G 120km CWDM 0~5dBm -31dBm 1W LC
HTSF-C1GxxYx SFP 1.25G 160km CWDM 1~6dBm -33dBm 1W LC
HTSF-1D1GCxxZx SFP 1.25G 80km DWDM 0~4dBm -26dBm 1W LC
HTSF-1D1GCxxXx SFP 1.25G 120km DWDM 0~5dBm -30dBm 1W LC
HTSF-5D1GCxxZx SFP 1.25G 80km DWDM 0~4dBm -26dBm 1W LC
HTSF-5DGCxxXx SFP 1.25G 120km DWDM 0~5dBm -30dBm 1W LC

If you have customized requirement for the TX output, RX Sensitivity etc, contact HTF sales online or leave message. 
HTF team will support you within 24 hours. 
Submit the following information then can download and know more